Title

AIX must be configured with a default gateway for IPv6 if the system uses IPv6 unless the system is a router. (Cat II impact)

Discussion

If a system has no default gateway defined, the system is at increased risk of man-in-the-middle, monitoring, and Denial of Service attacks.

Check Content

If the system is a router, this is Not Applicable. If the system does not use IPv6, this is Not Applicable. Determine if the system has a default route configured for IPv6 by running: # netstat -r | grep default default 10.11.20.1 UG 1 1823 en0 - - If a default route is not defined, this is a finding.

Fix Text

Configure an IPv6 default route on the system: # smitty route

Additional Identifiers

Rule ID: SV-215264r991589_rule

Vulnerability ID: V-215264

Group Title: SRG-OS-000480-GPOS-00227

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.